Shackle release for vehicles



April 7, 1931.

A. D. SURWALD SHAGKLE RELEASE FOR VEHICLES Filed May 26, 1930 IN V ENTOR,

Ara 1551720474 W I ATTORNEYZ.

Patented Apr. 7, 1931 UNITED STATES PATENT OFFICE.

ALFRED D. SURWALD, LOS ANGEIJES, CALTFORNIA SHACKLE BELEASE'F'ORVEHICLES Application. filed May as, 1930. Serial No. 455,789.

1 spring during removal, absence and replacement of the shackles. g I

An object is to provide a device which is simple, is easily and quicklyapplied and re moved by one operator and be a labor saver J over presentsystems for the same purpose.

Also to provide an object of low cost, of few and inseparable parts toavoid loss thereof, is light and rugged, and not cumbersome, thusforming a particularly practical too i for vehicle service institutions.

The invention contains certain advancements in this art as set forth inthe ensuing disclosure and having, with the above, additional objectsand advantages, and Whose construction, combination and details ofmeans, and manner of operation will be made manifest in the descriptionof the herewith illustrative embodiment; it being understood thatmodifications,variations and adaptations may be resorted to within thescope,

principle and spirit of the invention as it is more directly claimedhereinafter.

Figure 1 is an elevational view showing the applied device.

Figure 2 1s a perspective of the tool.

A portion of a rear, frame limb 2 is shown spring, one bar of the yokebeing pivoted-so and under this is fixed a cross-spring 3 whose endshave eyes 4, only one being here illustrated as attached by a suspendedshackle 5 to a perch 6 fixed on the axle 7 I The spring 'consists'of abolster of leaves which are banded bya clip 8. r

The improved tool includes a U-shaped yoke one of whose side bars 10 ispivoted at 11 to the near end of the. cross-bar 12 whose V opposite endis rigid with the other side bar 13. Thus the side bars are relativelyseparable so as to be readily straddled over the frame limb 2.

The bar 13 turnably passes through a side 4 lug 15 of a wedge shapedchair block 16 whose inclined top more or less conforms to the bend ofthe spring 3. The opposite side of the chair has a lug 17 outwardlyslotted at 18 to pass onto the respective side bar 10 of the yoke whenthis has been hung over the frame.

The lower ends of the yoke bars are threaded at 19 and have irremovablenuts 20.

After the yoke'has been hung on the frame I then the chair is swungaround on bar 13 to close on the other bar and then the nuts 20 are runup until the chair sets hard against the spring and abuts the clip 8;this acting as a buttress for the chair. By using awrench on the nutsthe chair is made to force back the spring. and slack the shackles sothat its bolts or pins can be pulled'easily while the frame is jackedorhoisted for such operation. all of the time that it-is applied and thusallows replacement of the shackle without The tool holds the spring back-75 again going through the process of taking up the spring.

It will be seen that the bar 10 swings in the 5-29 1 plane of the yokeand into the open end of its respective lug of the chair.

What is claimed is 1. A vehicle. shackle releasing tool comprising ayoke having side bars adapted to be hung over a frame part and itssubjacent as to be moved in the plane of the yoke to an. openpo'sitiontofacilitateapplication of the yoke, and a chair and adjustablesupports veesee therefor mounted on the side bars of the yoke forrepressing the spring.

2. A shackle releasing tool comprising a U-shaped yoke whose side barsare provided with adjustable nuts and which is adapted to be straddledover a spring and frame assembly, and a chair having side lugs one ofwhich is pivoted on one of said yoke bars and the other is laterallyapertured to be swung against the other bar; the nuts being engageablewith the lugs tovrepress the spring resting on the said chair.

ALFRED D. SURWVALD.

